Question # 1

For diagnosis of goiter in thyroid gland we use

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Co-60

C-14

I-131

Sr-90

Spontaneous chemical reactions take place in:

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electrolytic cell

Galvanic cell

Nelson' s cell

downs cell

____________ Is drawn in wires.

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Gold

Silver

Helium

Nil

The valency of nitrogen is

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1

2

3

4

Es is symbol of :

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Erbium

Einsteinium

Europium

Fremium

Which one is not a tetraatomic molecular?

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H2O

H2O2

SO3

BCL3

The mathematical formula of Boyle's law is:

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PV = k

PT = k

V = kT

T = Vk

Diamonds exists in ____________ form.

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Cubic

Linear

Circular

Nil

Which one of the following is not an electrolytic cell:

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Down cell

Galvanic cell

Nelson' cell

Both a and c

Which one of the following solution contains more water?

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2M

IM

0.5M

0.25M

1 torr = ?

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1 mm of Hg

1 atm

760 mm of Hg

1 pascal

CO2 the oxidation number of C =.

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+1

+2

+3

+4

Atoms reacts with each other because:

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They are attracted to each other

they are short of electrons

they want to attain stability

they want to disperse

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